Skip to Main Content
Summary form only given. We show how to discriminate between overcomplete sets of quantum states with minimum error probabilities. It is not possible to distinguish reliably between non-orthogonal states, but given a specific set of N states (N>2 for a two-state system) one can ask how well can they be distinguished. The answer is different depending on whether you want the minimum error, or the maximum information.
Date of Conference: 10-15 Sept. 2000